November 2, 2017 - 12:00 am
We share our lives with trillions of bacteria whose total genome exceeds our own by an order of magnitude. They influence our metabolism, immune and nervous systems and help us resist infections by pathogenic bacteria. It is also now apparent that common bacteria influence the behaviour of insects, fish and all vertebrates including mammals and that bacterial products form the basis of recognition of kin, expression of fear and aggression and choice of mate in rodents and fruit flies. What about us??